CaMg30O32Sr
CaMg30O32Sr is a metastable, insulating oxide material composed of calcium, magnesium, strontium, and oxygen.
About CaMg30O32Sr
CaMg30O32Sr is a complex, oxygen-rich inorganic compound characterized by a wide-band-gap insulating electronic structure. As a metastable phase, it represents a unique arrangement of calcium, magnesium, strontium, and oxygen atoms that highlights the structural diversity possible within multi-component oxide systems.
Its existence is confirmed through multiple reported structural configurations across research databases, underscoring its interest to materials scientists studying phase stability and crystal engineering. While its specific functional utility remains a subject of ongoing investigation, its insulating nature suggests potential roles in dielectric applications or as a structural component in specialized ceramic research.
Key Properties
Cross-validated computational properties for CaMg30O32Sr, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for CaMg30O32Sr, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P4/mmm (No. 123) | tetragonal | 4.14 | 0.0516 | -6.292 | 3.52 |
| P4/mmm (No. 123) | tetragonal | 3.57 | 0.0586 | -6.285 | 3.51 |
| — | — | — | — | — | 3.53 |
| — | — | — | — | — | 3.53 |
| P4/mmm (No. 123) | — | — | — | — | — |
| — | — | — | — | — | 3.53 |
Applications
Where CaMg30O32Sr is used.
Frequently Asked Questions
Common questions about CaMg30O32Sr, answered from cross-validated data.
What is CaMg30O32Sr?
CaMg30O32Sr is a metastable, insulating oxide material composed of calcium, magnesium, strontium, and oxygen.
What is CaMg30O32Sr used for?
What is the band gap of CaMg30O32Sr?
Is CaMg30O32Sr a metal, semiconductor, or insulator?
Is CaMg30O32Sr thermodynamically stable?
What is the crystal structure of CaMg30O32Sr?
What is the density of CaMg30O32Sr?
How many polymorphs of CaMg30O32Sr are known?
What elements does CaMg30O32Sr contain?
Where does the data for CaMg30O32Sr come from?
How It Compares
As a unique, multi-cation oxide, CaMg30O32Sr stands as a distinct entry in the landscape of complex alkaline-earth magnesium oxides, representing a specific metastable configuration that contributes to the broader understanding of how multiple large cations can be integrated into a dense oxygen-coordinated framework.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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